Pneumatic pumping device.



No. 649,803. Patented May l5, |900. L. M. BROCK &. G, W. PHILLIPS.

PNEUMATIC PUMPING DEVICE.

(Application med July 2o, 1899.)

(No Model.)

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LEVI M. BROOK AND GEORGE IV. PHILLIPS, OE MAOKINAW, ILLINOIS.

PN EUll/lATlC PUMPlNG DEVICE.

*ernoirrenrron forming part of Letters :Patent No. 649,803, dated Mey 15, ieo.

Application lcd .luly 20, 1899.

T0 @ZZ whom t may concern:

Be it known that we, LEVI M. BROCK and GEORGE l/V. PHILLIPS, of Mackinaw, in the county of Tazewell and State of Illinois, have invented a new and Improved Pneumatic Pumping Device, of which the following is a full, clear, and exact description.

Our invention relates to an improvement in devices for pumping water, using compressed air as a motive force, and comprises the novel features which are hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both ignres.

Figure l is a sectional elevation of our device, showing it in place; and Fig. 2 is a section taken through the valve by which the air-supply is shifted from one pumpingecylinder to the other'.

Our device is to be used in places where water is to be raised from wells, reservoirs, or ponds and it is desired to accomplish the same by the use of compressed air. Two pumping-cylinders are formed, the same being herein shown as combined within asingle cylindrical body A, which is provided with a central partition A3, which divides the same into two semicylindrical chambers A and A2. Each of these chambers is provided with an inlet-valve d in its bottom, which is closed by gravity. The cylinder containing these two pump-cylinders is supported from the bottom of the well or reservoir by means of legs Al or other suitable means, so that the water may flow beneath the same. This last feature, however, is an immaterial matter, as inlet-valves of other form may be provided in the side of the cylinder. A water-discharge pipe leads upward from each of these cylinders, said pipes being shown in Fig. l at B and B2 and extending to near the bottom of the cylinder. These pipes after leaving the cylinders are joined to a common discharge-pipe B and are also provided with .check-valves h, which will prevent backward flow of water.

In the upper ends of each of the cylinders A and A2 is inserted an air-supply1 pipe, said air-supply pipes leading from the cylinders independently. These pipesD and D at their Serial No. 724,483. (No model.)

upper ends are connected with valve-casings d, (shown in Fig. 2,) within which is placed a valve E, by which the direction of iow of the compressed air may be controlled, so as to discharge it alternately into the cylinders A and A2. The pipes D and D arecontinued above the valve in the sections D2 and D3, which connect, respectively, with the cylinders G and G of an air-pump. These airpumps are operated by means of a shaft II, which is mounted to turn in suitable bearings and is provided with two cranks 7L, each of which has a rod g' connected thereto and at its lower end connecting with the piston of the pump. This shaft may be turned by means of a wheel H, which is adapted to receive a belt, orby hand, as desired.

The valve E, by which the flow of air is controlled, is of a peculiar construction and is clearly shown in Fig. 2. The central p0rtion thereof is tubular and serves as a pipe to connect the pipes D2 and D3, leading from the pumps, to the opposite supply-pipes D and D. lThe heads or ends of the valve E are mounted to turn in a suitable casing d, which connects the sections D and D2 or D and D3 of the pipes. This head has two ports e and c, which open at one end at opposite sides of the head and so as to communicate, respectively, with the pipes D and D2. The other ends of these ports open longitudinally and connect, respectively, with the outer end of the valve and the outer air and the central tubular portion of the valve. In the position shown in Fig. 2 the port e' connects the upper section D2 of the pipe leading to one of the pumps with the central tubular portion of the valve, while the port e connects the lower section D of the pipe or that leading to one of the water-pumping cylinders with the outer air, thus serving as an exhaust-port. In addition to these two ports a third port is provided, which is shown in section at the righthand end of the valve, as shown in Eig. 2. This port is composed of two parts-an opening e2, which extends diametrically through the valve and between the ports e and e', and a branch port e3. In the position shown at the right-hand end of the valve in Fig. 2 this port e2 forms a through connection between the upper and lower sections D3 and D of the air-supply pipe. This port has a branch port IOO e3, which communicates with the central tubular portion of the valve. vThe corresponding ports in opposite ends of the valve are placed substantially at right angles to each other. In the position of the valve shown in Fig. 2 the air which is delivered through the pipe Dis discharged in a straight line through the port e2 into the Vpipe D and thence into the pumping-cylinder A2. The air which is supplied from the pump through the section D2 of the pipes is discharged through the por-t e', the central tubular section E of the pipe, and the port e8 into the pipe-section D'. The air from both pump-cylinders Vis thus discharged into the same water forcing or pumping cylinder. Now if the valve E be turned substantially at right angles to the position shown in Fig. 2 the ports e and e' atthe righthand end of the valve will be thrown into the position shown by the same ports at the left-hand end and the through-port e2 at the left-hand end will be brought into use, thus reversing the direction of the air and carrying the air from both pumping-cylinders into the pipe D. An automatic reversing means is provided for this purpose, consisting of the mechanism now to be described. The casing d upon one side of the device is provided wit-h a sleeve which su rrounds the valve. At one point this is provided with a slot d2, adapted to accommodate an arm E2, which projects radially from the valve and to permit the oscillation or partial rotation of the valve. A second arm E is also attached to the valve. These two arms are used for turning the valve. An arm d3 is also secured to the sleeve d and at its outer end has a lever E3 pivoted thereto,

one end of said lever being in engagement with the outer end of the arm E2 and the other endA projecting toward the armE. Between this end of theYV lever E3 and said arm E is placed one edge of a wheel F, said wheel being herein shown as a gear-wheel. This wheel is provided with two projections or pins ff', which extend in opposite directions, so that as the Wheel revolves one of the pins will engage .tlie arm E and the other will engage the end of the lever E3. This wheel is mounted to turn on suitable supports and meshes with a pinion F', which is secured to one side of a Wheel F2, which is mounted to turn upon suitable supports and engages a pinion F3, secured to the shaft H, by which the air-pumps or the air-compressor are operated. In consequence of this device the wheel F will be given a rotation much slower than that of the shaft Hand will by its pinsf and f alternately engage the lever E3 and the arm E', thus throwing the tubular valve E first in one direction and then in the other. By this means the air is alternately admitted into the two pumpingcylinders A and A2. The pu mping-cylinders should loe placed at such a level that the water will flow to them by gravity. As herein shown they are sunk at the bottom of the well or cistern from which the water is to be pumped.

To avoid overpressure in the pump-cylinders, they may be provided with a blow-off or safety valve, which is preferably mounted at the upper end of pipes C, which extend froln the upper end of the pumping-cylinders to above the surface of the water,- as shown in Fig. l.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patent- 1. A pneumatic pumping device, comprising two alternately-operated cylinders which are placed to receive a gravity-supply of Water, separate air-supply pipes leading thereto, a double-cylinder air-pum p, each cylinder being connected with one of the pipes supplying the water-pu mpin g cylinders, a valve having a tubular central portion and its ends inserted in casings, said valves having ports adapted alternately to connect both pipes from the com pressing-cylinders to one pumpsupply pipe and to discharge the air from the other pump-supply pipe, and a valve-operating mechanism actuated by the compressoractuating means, substantially as described.

2. A pneumatic Water-pumping device, having two alternately-operating water-forcing cylinders, two air-compressing cylinders, a pipe leading from each compressor-cylinder to its respective water-forcing cylinder, a valve consisting of a tubular center and ends having ports therein, the two pipes each containing a casing adapted to receive one end of said valve, said valve ends having two ports opening by one end at opposite sides thereof and adapted to connect with the air-pipe, the other ends of said ports opening respectively into the central tubular part and at the outer end of the valve, said valve end also having a through-port substantially at right angles to the plane of the other ports and adapted to connect the two parts of the pipe, and a side extension from said through-port to the central tubular part of the valve, the corresponding ports of opposite ends of the valve being'locatcd substantially at right angles to each other, and automatic means for throwing said valve, substantially as described.

3. A pneumatic water-pumping device, having two alternately-operating water-forcing cylinders, two air-compressing cylinders, a pipe leading from each compressor-cylinder to its respective water-forcing cylinder, a valve consisting of a tubular center and ends having ports therein, the two pipes each containing a casing adapted to receive one end of said valve, said valve ends having two ports opening by one end at opposite sides thereof and adapted to connect with the airpipe, the other ends of said ports opening respectivelyinto the central tubular part and at the outer end of the valve, said valve end also having a through-port substantially'at right angles to the plane of the other ports and adapted to connect the two parts of they pipe, and a side extension from said throughport 'to the central tubular part of the valve,

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the corresponding ports of opposite ends of the valve being located substantially at right angles to each other, tivo arms on said valve, a pivoted lever engaging one arm, a rotating` wheel having projections alternately engaging said lever and the other arm to turn the valve, and means for turning said wheel from the compressor-operating mechanism, substantially as described.

4. Apnenmatie Waterpuinping device,hav ing two alternately-operating water-forcing cylinders, two air-compressing cylinders, a pipe leading from each compressor-cylinder to its respective watereforcing cylinder, a valve consisting of a tubular center and ends having ports therein, the two pipes each con taining a casing adapted to receive one end of said valve, said valve ends having two ports openingl lby one end at opposite sides thereof and adapted to connect With the airpipe, the other ends of said ports opening respectively into the central tubular part and at the outer end of the valve, said valve end also having a through-port substantially at right angles to the plane of the other ports and adapted to connect the two parts of the pipe,and a side extension from said throughport to thc central tubular part of the valve the corresponding ports of opposite ends of the valve being located substantially at right angles to each other, a sleeve supported from one otl the supply-pipes and surrounding the' valve-body7 an arm thereon, a lever pivoted 1 on the said arm, two turning-arms extending LEVI M. BROCK. GEORGE W. PIIILLPQ..

Witnesses:

L. A. l`nonrson, (inwinnen Wn'isoN, 

